[Bug] Unable to add colon to XPath queries

**Description**
While receiving an XML response and attempting to filter the response using XPath, if the path contains a colon inside of it, "Invalid XPath query" error will be thrown, although it is a valid path, for example _//s:path_

**Example**
The following response is impossible to query:

If now I will query the following:
//s:Envelope
I will get the Invalid XPath query error.

**Info**
According to the XPath 3.1 documentation and according to various desktop and online XML editors it is a valid query.
Though from what I understand, the [npm package](https://www.npmjs.com/package/xpath) xpath is using XPath1.0, might that be the issue?

Start by locating the response-filtering code that validates XPath queries and reproduce the reported //s:Envelope case using the npm xpath dependency. Done means a valid namespaced XPath no longer raises “Invalid XPath query”; run the relevant test suite and add coverage if the project has tests for this behavior.

Written by the indexing model from the issue text.